UPDATE: Just learned that Firefox is not a supported browser for this extension, yet it is available and with 4,758 users, they should probably pull it or communicate that on their addon page... When opening the link: https://www.capitalone.com/applications/eno/virtualnumbers/

I get the following popup:
Browser Not Supported
Eno℠ is currently only available in Google Chrome. Please visit our site from Google Chrome to install Eno℠

* I added the extension to Chrome and all works as it should....
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I got off to a great start with this add-on also using a Google Voice number (which I use for all of my accounts with no issues), I used it for over a week or two then suddenly it stopped working...

Now when I sign in, all I get is the following 'cute' non informational response! Also the feedback option on it is dead, opens a webpage in a new tab without the ability to provide feedback.

No way to figure out if the service is legitimately down or experiencing issues either.

If it is a GV issue, they should plainly provide that feedback. I am UNABLE to continue using it until the issue is resolved.

If it ever starts working again I will up the stars as it is a brilliant idea, too bad they don't just incorporate VC use/management on their website.
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Eno response after trying to sign in:
'Something went wrong

What, exactly? Well, that's what my team is busy figuring out. Please try again later.'
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Requires a non-Google Voice number to use for some reason. Even though the number on my account is a GV number. No way around it other than to change the number on my account to one I never use. Idiotic.

They don't tell you how to go to merchants who already have your existing credit card number and change it to a virtual number. Still waiting to find that out.

I haven't used it yet. But I think it will help me. At least that's what I am hoping.